Adjustable spacing-collar



E. A. ROOF. ADJUSTABLE SPACING CGLLAR. APPLICATION FILED Auc.23. 1920.

Patented Jan. 25, 1921.

. VUN TEDS M E Parser OFFICE.

nns'ron a. n w, or DAYTON, OHIO.

ADJUSTABLE ermine-COLLAR;

7 .To all-whom it may concern.

' is clearly shown.

Be it known that LELSTON A. Roor, a citizen of the United States ofAmerica, residing at Dayton, county of Montgomery, State of Ohio,.haveinvented certain new and useful Improvements in AdjustableSpacingCollars, of which the following is r 'a full, clear, andexactdescription.-

This invention relates to devices for ad justing the I'GlQtlVBdlStlIlCQbetween two objects and more particularly for adjusting the relativedistance betweentwo machine elements such as cutters, facers and thelike.

In the general machine shop practice close adjustments have heretoforebeen arrived at by adding paper shims to the regular spacing collars.After this type of ad justment had been used in the machine for a shortperiod, the paper shims would wear and thereby destroy the accuracy ofthe adjustment.

Other types of spacing collars have been used which include two collarsof the male and female type, which when rotated relative to each otherwould tend to increase or decrease the combined width of the two. Themain objection to the use of this type of adjusting collar is that therotation of the cutters would sometimes tend to rotate the adjustingcollars themselves and thereby destroy the original adjustmcnt thereof.

It is among the objects of the present invention to provide a device ofsmall struc ture and of substantially great durability, which may in noway be affected by the operation of the cutters to destroy theadjustment of the same and which may readily be operated to change theadjustment between the cutters if desired.

Other objects and advantages of the present invention will be apparentfrom the fol lowing description, reference being had to the accompanyingdrawings, wherein a pre ferred embodiment of the present invention Inthe drawings:

Figure 1 is a view showing a shaft of a milling machine (not shown),this shaft having mounted thereon two cutting tools with the adjustingcollar interposed therebetween;

t Fig. 2 is an elevational view of the adjusting collar;

7 Specification of Letters Patent. Patented Jan 1921 Application filedAugust 23, 1920. Serial No. 405,492.

Fig. 3 is a side view partly in section, the section being taken alongthe line 3-'3 of Fig. 2 and shows the adjusting collar in its expandedposition;

screw an'd a portion of the collar show- 111" graduations on the screw.

neferr-ing to the drawings, 20 designates an an usting collar comprisingflanges 21 and a web port1on22. Theflanges 21 are screw threaded atvarious points, five points being shown in the Fig. 2, each of thesescrew threaded portions being adapted to receive a tapered screw 23capable of forcing the flanges apart when screwed therebe tween. Inorder to increase the resiliency of these flanges, the web portion 22 isprovided with a series or holes or openings 24 which are shownconcentric with the screw threaded portions of the flanges 21.

Referring to the Fig. 1, a machine bearing 25, support-s a shaft 26 onwhichare mounted two cutting elements 27. lnterposed between these twocutting elements are two collars 28 which have the adjusting collar 20substantially therebetween. A nut 30 tends to hold the entire assemblyof cutting elements 27, collars 2S and adjusting collar 20 in positionagainst the shoulder 26" of shaft 26.

'lVhen the operator desires to locate two cutting tools a certaindistance apart, the tapered screws 23 are operated, which when screwedinto the collar tend to force the flanges apart and increase thedistance between the cutting portions, and when screwed out of theadjusting collar will permit the flanges thereof to spring back againand thereby tend to reduce the distance between the cutting elements 27.y

In order that equal spreading of the flanges may be obtained at all thepoints of adjustment, the screws are provided with graduations 31adapted to aline with indices 32 on the flanges whereby the operator mayturn all screws an equal distance as indi cated ,by the graduations.

While the form of mechanism herein shown and described constitutespreferred forms of embodiments of the invention, it is to be understoodthat other forms might be adopted, allcoming within the scope of theclaims which follow:

What I claim is- 1. A spacing collar comprising'a ring provided withperipheral flanges; and means interpose'c'l between said flanges forincreasing the space therebetween.

'2. A spacing collar comprising a'ring provided with peripheral flanges;and wedge shaped means interposed between said flanges for increasingthe space therebetween. a

' 8, A spacing collar comprising a ring provided with peripheralflanges; and a plurality of screws interposed between said flanges, andoperable to increase the space between the flanges. i V

4. A spacing collar comprising a ring provided with peripheral flanges;and a plurality of tapered screws interposed between said flanges, andoperable to increase the space between the flanges.

A spacing collar comprising} flanges of tapered screws interposedbetween said flanges and equidistant from the web por- Y tions to adjustthe relative distancebetween the flanges.

6. A spacing collar comprising flanges and spaced web portions; and aplurality of tapered screws interposed between the flanges andthe webportions for adjusting the" relative distance between the flanges.-

7. A spacing collar comprising flanges and spaced web portions; aplurality of tapered screws interposed between said flanges forincreasingthe spaces therebe tween; an index markon the flanges and inalinement with the center of each screw; and graduations on saidscrewsfor indicating the distance each screw is turned, to obtain equalspacingbetween' the flanges.

In testimony whereof I hereto afiin my signature; '7 v a a JELs'roNasoor.

I Witnesses: V

C. DALE llIILLER H. SOLLENBERGER.

